Flame-furnace.



No. 840,709. PATENTED JAN. s, 1907. A. PPosER.

FLAME FURNACE.

APPLICATION FILED APR.7.1905

Ackern-Baden,

UNITED STATES PAirnNfry omen,

ADOLF PFosER, oF AcHERNfBAnEN, GERMANY? FLAME-FURNACE. No. 840,709. specificati@ fretten latent. Patented Jan. s, 1907.: Application mea April 7. 190s. serial No. aliases.'

Toall whom, it 'ma/y concern,.-

ject of the German Em eror, residingat Germany, ave lnvented certain new and useful Improvements in, `Flameaces, .of which the following is ay speciication. l,

The present invention has reference to improvements m means for making economic baking fu poses; anditconsists 1n useof the' products of combustion generated ilameaces, suchas are used for drying, singfanjlalingl, and the like purt e construction and as hereinafter specificarrangementof parts,

forth in the appended aly described, and set c uns. "M" I .*Accordig to this 1invention I not only' use with the products of the productsbi combustion after' they have served in the I also use the heat generated above iandaround the furnace-vault for the p l*heating the feed-Water and superheatin'g the furnaceto generate steam, but

ose of generated steam. By means of my arrangement it is possible to buildin steam-boilers in the smoke-flue 4of furnaces, the off gases of which contain fromthreeto five per cent. of ous acid, Without danger of corrosion could only be done-in case the gasesA contained lessthan 'one per cen-t. of such acid.

`This advantage results :from the fact that the feed-heater is not broughtinto direct contact combustion. The heated feed-water enters ture of 212 or over, so that consequently the boiler is cooled only to asmall degree by it. As a result, condensation of the sulurous acid, so dangerous to the boiler material willV not occu', and the life'of such boiler will be greatly extended., ,Si f' l' The savmg m fu according to my invention' over the ordinary t e now used 1s considerable.

- n order to make m invention more readily understood, I Wil now describe it with reference to the' accompanying sheet of draw in I.

i e 1 represents a Allame-furnace with feed `dig-eter and superheater in vertical sectional elevation on the line A B of Fig. 3.

Fig. 2 is a plan view. Fig. 3 represents a secthe boiler at a tempera-A tional elevation on line C D of Beit known that I, ADoLF PFosnR, a sub. Fi

- by the furnace heat and carried thro -lng means in close Fig. 2'; and g. 4', a front view of the ilameace in combination `With a'steam-boiler, partly in section.

The steam-boiler a is built into the smokeflue' b of the furnace c. The ipes'd of the feed-heater and the ipes e of tliie superheater are arranged at tllfe sides and on to i of thel ace-vaultpreferably all walled) in. Throu h the conduit 1 the feed-water is conducte to the feed-heater, where'it is heated duit 2 to the steam-boiler. After` aving .been converted into steam iti'then is conducted througheonduit Bte the pi e system e, is therein superheated, an

matter of saving the corrodilig tion will be o the art. -Y

What-I claim'is--fs I' f `1. In ame-furnace's,.i`n combination, the furnace proper, feed. heating and su erheat-` pririmity 'to saidf 1 ace,

fuel and doing away with action of the gasesf'b hfcony v a y'carried -fo through conduit 4 t the engine'. l'

` The advantages of this arrangement in the bvious to any person-skilled in means linclosing said feed heating and superheatln means and'a'dp'ted to cape o the heat radiating a steam-boiler arranged m said Y heating-.and superheating from said furnace,

2f. In,y efrnaces, furnace proper,` feed heat' ing means located in the'w l u and `entirely surrounded thereby, s'o-as to receive the heat generatedin- ,the furnace-vault, a sctleaum-boiler arranged thelsmoke-'ue of sai prevent esl the smoke-due of ace, `and means connecting said feed' means with said 4boiler,allsilbstantially as and for the purpose` vfin combination, the

sof sai irnace rnace'so as to receive-thefheatof the J' products of combustion, -andgmeanslistninecti.,4 I

forth.

In testimony whereof I in presenceof tWo Witnesses. f

Witnesses: Josnrn Romana,

GUsTAv Sonwii'xss.

,ADoLi PFosER; i'

ingsaid feed heating and l with saidI boiler, as and f o'rjfthe purpose set' afliX mysignature A' 

